It is called Caller ID faker. It is lots of fun, just don't use it for wrongful purposes (because, from what I understand, that is a federal offense). It also has a voice simulation which is really quite convincing. I'm a guy with a deep baritone voice and I did the female simulation... and it fooled my friends with a funny prank. You can really have some fun with it... because it shows whatever number you make up as the caller id and with a zany new voice... it's crazy.

I don't think thats what I mean. My wife said our daughter was able to call the wifes phone, when it rang the caller ID showed my number, as thought I was calling her. Says she can do it with any number. Anyone know what I'm talking about?

There's a few that do that. Bluff my call is a good one, you can set the caller id to any number you want, you can disguise your voice, and even record the call - I use it mostly for callin my boss because you can make it go right to voicemail of the person you're calling...lol. Here's a link to their site, and it's in the market as well.Bluff My Call - Change Your Caller ID and Voice From Any Phone

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